wazzup to all the fellas and lady fellas!=]

Here is some of our work over the weeks!

ENJOY :)over the week:our table includes: Alyssa,Brianna,T-DUBS!!!!, and Jordan



11-2-07



The purpose of this experiment is to see how does a pressure change as the volume of air in the syringe changes.
Our hypothesis is greater volume of air then there is a higher air pressure.
Independant varible: Volume, which is measured in cm3.
Volume
15 cm3
10 cm3
5 cm3
0 cm3
Pressure
150 kPa
200 kPa
375 kPa
400 kPA


Dependant varible: Pressure, which is measure in kPa
Constance: Same syringe and the same gas (air).







Liquids oct. 29, 2007


· State in which matter takes shape of its container and has a definite Volume.
· To measure liquids you use a graduated cylinder.
· Look under the meniscus to find the volume of a liquid.
· Liquids contain: density,mass,volume.
· The atoms or molecules in liquids move fast enough to over come, some of the attractions between them

water.jpg


Oct.19,2007
Summary for Clay Boat:
In order for a clay boat not to sink you might want to think about having thin walls
and sides that curve in. Also your boat will float if your water displacement is around 10g.
Then there's a good chance your boat might float.Your floating boat average is 10.7g.
This is the amount of water displaced by the boat. If your boat average is 6.23g water
displaced there's probably a good chance your boat will sink.


Oct.15,20007

Orange Flask
10mL
15mL
20mL
25mL
30mL
17.50
24.40
25.90
30.70
36.01

Blue Flask
10mL
15mL
20mL
25mL
30mL
16.06
20.04
21.03
25.05
29.07



Oct. 10, 2007

The summary of volume and mass:
The data shows no correlation between volume and mass in a specific liquid. Even though the red rod had a large mass with a little volume.
This means that the density would also be a large number. So this shows that there is no correlation between the
volume and mass of different irregularly shaped objects.




Oct 5, 2007

Todays Mission is...
Determining which of the Physcial Properties may have had a part in the sinking of the clay boat and collecting
evidence that will support our case.
Here's the information we have so far. We'll keep you in detail.
  • Mass- a matter is made up of mass.
- To measure mass you use a triple beam balance.
  • Weight- is a measurement of gravitational force acting on an object.
- To measure weit you use a newton scale.
  • Volume- of a solid object is a three- dinensional concept of how much space it occupies.
-To figure out the volume of an object you use a graduated cylinder.
  • Mallebility- pounded into small sheets.
- To get things pounded into small sheets you use a mallet.
  • Texture- refers to the properties held and sensations caused by the external surface of objects received throught the senses of touch.
- To find a texture of an object you.........
  • Ductility- is the mechanical property deformations due to tensile stress without fracture.
-.............



Oct 3, 2007

In science class this week with Mrs.Laguna gave us a lab to try to figure out if mass is conserved. Here is the lab data all 6
groups had and the averages we came up with.Our data is under group number 4.At the end of this lab we found out that mass is conserved.
Group #
Mass & Water
Mass of Alcohol
Sum Of Masses
Mass Mixed
Diff.
1
20.8
24
44.8
44.8
0
2
24.9
21.9
46.8
45.9
-0.9
3
20.2
20.6
40.7
40.75
0.05
4
24.3
21
45.3
46.7
1.4
5
24.2
22.7
46.9
46.7
-0.2
6
23.9
22.6
46.5
45.4
-1.1
average
23
22.133333
45.166667
40.04167
-0.125